As I mentioned, I have used the Williams Streamlines on all my rifles. They allowed me to mount a short 4x scope on my model 70 because the front mount is extended. I have to tell you they look great on that rifle. They also work great in that they have never lost their zero in 18 years. The Williams shop is about 45 minutes from my house. Oddly enough you can buy them cheaper on the web, but for a few bucks more, plus a discussion with a knowledgeable person in person, I often shop there. Keep the money local when possible!